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- To: eigen@xxxxxxxxxxxxxxxxxxx
- Subject: Re: [eigen] Bugs in Cholesky modules
- From: "Gael Guennebaud" <gael.guennebaud@xxxxxxxxx>
- Date: Wed, 3 Sep 2008 22:57:12 +0200
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Hi,
bugs fixed in rev 856821.
On Wed, Sep 3, 2008 at 10:20 PM, Timothy Hunter <tjhunter@xxxxxxxxxxxx> wrote:
> Hello, I have found 2 bugs in the choleskyWithoutSquareRoot class:
>
> - it does not work with 1x1 matrices. I added a quick workaround on my local
> copy that checks if the size is 1, but I do not know if there is a more
> elegant solution than that.
I also did that, there is no better solution.
> Also, how big can fixed-size matrices be? I encountered some problems to
> compile code with Matrix<float, 1000, 1000> classes. (I am working on a more
> complete bug report for that).
the limit is the maximal memory you can allocate on the stack, for instance:
float data[1000*1000]
won't work, so there is no way that Matrix<float, 1000, 1000> works.
Actually, from my experience there is absolutely no advantage to use
fixed size matrices larger than 16.
Gael.
> Any help will be much appreciated.
>
> --
>
> Timothy Hunter
>
> Student (Stanford University)
>
> T. 404 421 3075